missing data in surface plot

i should surf plot my data points x(14000),y(26),z(26x14000) , none of these points have missing data, but when i do the surf plot and view it using view(0,90) i could see missing data(white patches) which is never expected because my colorscale is parula which ranges from blue to yellow

5 个评论

Can you attach the values in a .mat ?
my appologies, i cant post my work anywhere but x ranges from(0 to 0.5), y ranges from 488 to 4200, z ranges from (0.0089 to 1.061e-23) all the type double.
Please show the output of whos for all of the variables.
If you cant post your work, you ashould not ask for help in open forums. You will get help on showing your problem; else how do you expect to get a help?
i have attached the file

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 采纳的回答

Siyuan Wu
Siyuan Wu 2021-8-5

0 个投票

i just happened to find my figure I plotted last month, which is ok. And after one month, I rerun the program the white spot came up.
I found that it is due to the OpenGL related......
I try to type "opengl hardware" and re-plot the figure. The white spot disappear........

更多回答(1 个)

Your data is fine.....there are no missing values....you may try this:
surf(x,y,Z)
colorbar
grid off
shading interp

3 个评论

I do not see any problem on my system.
I would tend to suggest (personal preference)
surf(x, y, Z, 'edgecolor', 'none')
colorbar
I would leave grid on.
You might be having a graphics driver glitch. Try
set(gcf, 'Renderer', 'Painters')
and look at the date of the driver that shows up in
opengl info
and update graphics drivers if you are not fairly current.
Thanks, it is working fine
What was the solution?

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